SPORTS Steele's Elena Gumbs loses the ball on a drive with pressure applied by Reagan's Malorie Dyer as Reagan plays Steele in girls basketball at Littleton Gym on November 15, 2011. Tom Reel/Staff

SPORTS Steele's Elena Gumbs loses the ball on a drive with pressure applied by Reagan's Malorie Dyer as Reagan plays Steele in girls basketball at Littleton Gym on November 15, 2011. Tom Reel/Staff

Photo: TOM REEL, SAN ANTONIO EXPRESS-NEWS

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SPORTS Rattler player Corrigan Tibbs (left) tries to swipe the ball from McKenzie Calvert who gets away with a defensive rebound as Reagan plays Steele in girls basketball at Littleton Gym on November 15, 2011. Tom Reel/Staff

SPORTS Rattler player Corrigan Tibbs (left) tries to swipe the ball from McKenzie Calvert who gets away with a defensive rebound as Reagan plays Steele in girls basketball at Littleton Gym on November 15,

Mack led the second-ranked Rattlers (6-1) with 18 points. She came up big in overtime, scoring four points and grabbing a key steal to help seal the win.

“I just tried to play aggressive,” Mack said.

At first, it didn't appear that Reagan would need the extra period. After falling behind 6-0, the Rattlers reeled off a 16-2 run to end the first quarter. Sophomore guard Wendy Knight capped off the rally with a 3-pointer at the buzzer. Knight finished with 17 points on the night. Post Corrigan Tibbs added 10.

The Rattlers stretched their lead to 11 midway through the third with a 9-2 run.

Calvert, a Baylor commit, made a pair of key jumpers in the fourth. Gumbs, who signed with Rice last week, gave Steele its first lead since the first quarter with back-to-back 3-pointers late in the fourth.

Mack banked in a 15-footer to retake the lead. Gumbs answered with a free throw to tie it at 46-46 with 45 seconds left. Reagan had an in-bounds pass with three seconds left, but Mack couldn't get off a shot to avoid overtime.

She made up for it in the extra period.

After a missed Steele 3-pointer, Mack sprinted past the defenders for an easy fast-break lay-in.